Heimlich H J
Ann Emerg Med. 1981 Sep;10(9):476-80. doi: 10.1016/s0196-0644(81)80281-8.
The Schafer artificial respiration method, which compressed the lungs to expel water, was abandoned in 1958 when mouth-to-mouth ventilation became the primary resuscitation method. Water thus remained in the lungs, making mouth-to-mouth ineffectual for treating drowning. Subdiaphragmatic pressure (Heimlich Maneuver) effectively evacuates water from the lungs by elevating the diaphragm and compressing the lungs. The method is safe because it eliminates compression of the rib cage. The first step in resuscitating a drowning person should be subdiaphragmatic pressure repeated until water ceases to flow from the mouth.
谢弗人工呼吸法是通过挤压肺部来排出积水，但在1958年口对口通气成为主要复苏方法后就被摒弃了。积水因此留在肺部，导致口对口通气在治疗溺水时无效。膈下按压（海姆立克急救法）通过抬高横膈膜并挤压肺部，能有效将肺部积水排出。该方法很安全，因为它避免了对胸腔的挤压。对溺水者进行复苏的第一步应该是反复进行膈下按压，直到水不再从口中流出。
